RANKING · 2024 ACS · 66 SHOWN OF 66

Highest Korean population share, Iowa counties

Iowa counties ranked by the share of all residents who are Korean (2024 American Community Survey). A concentration measure: Korean residents as a percentage of total population. This list covers the 66 counties in Iowa that qualify, ranked against each other statewide. The median across all 66 is 0.1%. Biggest climber in the top 100 since 2020: Harrison County, IA, up 44 places to #21.

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SAME RANKING BYCities States Metros

RELATEDLargest Chinese population Highest Chinese population share Largest Taiwanese population Highest Taiwanese population share Largest Hmong population Highest Hmong population share

RANKPLACESTATEPOPKOREAN SHAREVS 2020

01▲1Story County, IAIA101,2911.1%+0.3 pts

02▲2Poweshiek County, IAIA18,3680.7%+0.2 pts

03▼2Johnson County, IAIA160,0440.7%−0.2 pts

04▲40Union County, IAIA11,8290.6%+0.5 pts

05▲9Decatur County, IAIA7,6550.5%+0.2 pts

06Webster County, IAIA36,8380.5%+0.1 pts

07Shelby County, IAIA11,6890.5%–

08▼3Humboldt County, IAIA9,4090.5%0.0 pts

09▲4Clay County, IAIA16,2020.4%+0.1 pts

10▲5Black Hawk County, IAIA131,5320.3%0.0 pts

11▲11Scott County, IAIA175,2590.3%+0.1 pts

12▲22Kossuth County, IAIA14,3220.3%+0.2 pts

13▼4Marion County, IAIA34,1920.3%−0.1 pts

14▲32Butler County, IAIA14,0490.3%+0.2 pts

15▼5Dallas County, IAIA118,4570.3%−0.1 pts

16▲14Polk County, IAIA516,5460.2%+0.1 pts

17▲16Appanoose County, IAIA12,0770.2%+0.1 pts

18Ida County, IAIA6,7770.2%–

19Guthrie County, IAIA10,7820.2%–

20▲29Greene County, IAIA8,6580.2%+0.2 pts

21▲44Harrison County, IAIA14,6230.2%+0.2 pts

22▲7Mitchell County, IAIA10,6500.2%0.0 pts

23▲2Buena Vista County, IAIA20,4490.2%0.0 pts

24▼8Sac County, IAIA9,5250.2%−0.1 pts

25▲17Bremer County, IAIA25,2960.2%+0.1 pts

26▼2Linn County, IAIA232,0280.2%0.0 pts

27▲37Clinton County, IAIA46,0020.1%+0.1 pts

28▲13Madison County, IAIA17,2700.1%0.0 pts

29▲27Benton County, IAIA26,0040.1%+0.1 pts

30▼12Cedar County, IAIA18,3590.1%−0.2 pts

31▼12Carroll County, IAIA20,3030.1%−0.1 pts

32Howard County, IAIA9,4150.1%–

33▲24Pottawattamie County, IAIA92,9960.1%+0.1 pts

34▲5Woodbury County, IAIA106,6490.1%0.0 pts

35Wright County, IAIA12,8010.1%–

36▼5Warren County, IAIA57,3310.1%0.0 pts

37▲1Hardin County, IAIA16,4550.1%0.0 pts

38Tama County, IAIA16,7960.1%–

39Osceola County, IAIA5,9800.1%–

40▲27Mahaska County, IAIA21,8800.1%+0.1 pts

41▼21Floyd County, IAIA14,9010.1%−0.2 pts

42▲29Dickinson County, IAIA18,0770.1%+0.1 pts

43▼26Cerro Gordo County, IAIA42,3720.1%−0.2 pts

44▲16Washington County, IAIA22,6670.1%0.0 pts

45▲23Sioux County, IAIA36,7740.1%+0.1 pts

46▼3Dubuque County, IAIA99,3810.1%0.0 pts

47▲15Lyon County, IAIA12,3540.1%0.0 pts

48▲10Marshall County, IAIA39,8900.1%0.0 pts

49▼1Mills County, IAIA14,7930.1%0.0 pts

50Emmet County, IAIA9,1070.1%–

51▲4Audubon County, IAIA5,5090.1%0.0 pts

52Franklin County, IAIA9,8680.1%–

53▲16O'Brien County, IAIA14,2200.0%0.0 pts

54▲9Grundy County, IAIA12,3610.0%0.0 pts

55▼2Winnebago County, IAIA10,2510.0%0.0 pts

56▼29Muscatine County, IAIA41,8530.0%−0.1 pts

57▼7Des Moines County, IAIA38,0770.0%0.0 pts

58▼37Lee County, IAIA32,3060.0%−0.2 pts

59▼14Page County, IAIA14,8560.0%0.0 pts

60▲1Fayette County, IAIA19,0470.0%0.0 pts

61▼10Calhoun County, IAIA9,5620.0%0.0 pts

62Van Buren County, IAIA7,1310.0%–

63▼28Davis County, IAIA9,2300.0%−0.1 pts

64▼57Winneshiek County, IAIA19,7330.0%−0.4 pts

65▼53Henry County, IAIA19,3490.0%−0.3 pts

66▼14Jasper County, IAIA38,1530.0%0.0 pts

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UPDATED 2026-09-11 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES